East, meet West gaming is largely the purview of Western developers, and the PC RPG evolved from early classics like Hero's Quest (Quest for Glory) and Ultima. PC RPGs and Western RPGs have gone hand-in-hand to such a degree that the two are largely synonymous. The RPG can, at times, overlap a bit with the adventure genre, but the greatest defining characteristic of Western RPGs is "open-ended game design," or as The Elder Scrolls: Arena website puts it, "be who you want and do what you want." Which, perhaps ironically, is one of the biggest reasons for the genre's slow demise.